package com.heima.kafka.sample;

import org.apache.kafka.clients.producer.*;

import java.util.Properties;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;

/**
 *  消费者
 */
public class ProducerQuickStart {
    public static void main(String[] args) throws ExecutionException, InterruptedException {
        // 1.kafka连接配置信息
        Properties properties = new Properties();
        // kafka连接地址
        properties.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG,"192.168.202.128:9092");
        // key和value的序列化
        properties.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer");
        properties.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.StringSerializer");

        //ACK配置 消息确认机制
        properties.put(ProducerConfig.ACKS_CONFIG,"all");

        //重试次数
        properties.put(ProducerConfig.RETRIES_CONFIG,10);

        //数据压缩
        properties.put(ProducerConfig.COMPRESSION_TYPE_CONFIG,"gzip");

        // 2.创建kafka生产者对象
        KafkaProducer<String,String> producer = new KafkaProducer<String,String>(properties);
        // 3.发送消息
        /**
         * 第一个参数 ：topic
         * 第二个参数：消息的key
         * 第三个参数：消息的value
         */
        ProducerRecord<String, String> kvProducerRecord = new ProducerRecord<String,String>("topic-first","key-001","hello,kafka");
        // 同步发送消息
//        RecordMetadata recordMetadata = producer.send(kvProducerRecord).get();
//        System.out.println(recordMetadata.offset());
        // 异步消息发送
        producer.send(kvProducerRecord, new Callback() {
            @Override
            public void onCompletion(RecordMetadata recordMetadata, Exception e) {
                if (e!=null){
                    System.out.println("记录异常信息到日志表中");
                }
                System.out.println(recordMetadata.offset());
            }
        });

        // 4.关闭消息通道  必须要关闭，否则消息发送不成功
        producer.close();

    }
}
